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Kämmererite & Chromite

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MNT757585

Kämmererite & Chromite

ex Dr. F. Krantz, Bonn, GER
Classic Locality

Description Tabs

Description
Locality: 
Korkodinskoe Deposit, Korkodin, Ufaley, Verkhny Ufaley, Chelyabinsk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3 × 2.8 cm
Description

Old time example of purplish Kämmererite ie chromian clinochlore as crystals on/in chromite matrix from the Urals. Note the old name for Kämmererite on the label: Kotschubeit. Probably late 19th century. The given locality is the river Topkaya in Chelyabinskaya Oblast’, the specimen typical for Korkodin.

Mineral Data
What's on the rock

Kämmererite

Variety Of: 

Clinochlore

Formula: 
(Mg,Fe2+)5Al(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.0 - 2.5
Hardness: 
0.0
Streak: 
white

Chromite

Formula: 
Fe2+Cr3+2O4
Strunz: 
4.BB.05
Hardness: 
5.5
Colour: 
Black
Streak: 
Brown
Type Locality: 
Bastide de la Carrade, Gassin, Var, Provence-Alpes-Côte d'Azur, France...

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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